Pedal.



EFD..

ROBERT TODD LOWD, OF CHATTANOOGA, TENNESSEE.

PEDAL.

Specification of Letters Patent.

Patented Aug. 19,1913.

Application filed July 17, 1912. Serial No. 710,050.

To all whom t may concern Be it known that I, ROBERT T. Lown, citizen ofthe United States, residing at Chattanooga, in the county of Hamiltonand State of Tennessee, have invented certain new and usefulImprovements in Pedals, of which the following is a specilication.

This invention relates to pedals and more particularly to a pedaldesigned especially for use on motor-cycles.

@ne aim of the invention is to provide a pedal of this class which,while it does no-t embody ball or roller bearings will neverthelessrotate freely upon its spindle and with but little friction.

Another aim of the invention is to provide a pedal the hub of which willnot be liable to become Yfilled with dust and dirt and which may bereadily and quickly detached from and applied to its spindle .withoutthe use of tools.

A further aim of the invention is to provide means for holding the pedalupon its spindle, which means will insure against accident-al removal ofthe pedal, although it may be readily and quickly manipulated to providefor release of the pedal.

For a full understanding of the invention reference is to be had to thefollowing description and accompanying drawing, in which z- Figure 1 isa vertical longitudinal sectional view thro-ugh the pedal embodying thepresent invention, parts being shown in plan. Fig. 2 is a verticaltransverse sectional view on the line 2 2 of Fig. 1. Fig. 3 is aperspective view of the spindle on which the pedal is mounted. Fig. t isa group perspective view illustrating the device employed for holdingthe p-edal in place upon its spindle.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the accompanying drawing'by the same reference characters.

In the drawing, the spindle upon which the pedal is mounted is indicatedby the numeral 1 and is formed adjacent one end with the usual head 2having flattened sides 3 for the engagement of a suitable wrench,whereby its threaded end 4 may be screwed into or unscrewed from theusual opening in the pedal crank. The spindle 1 is reduced from about apoint midway between its ends to its end opposite its threaded end el asindicated at 5 and, for a purpose to be presently explained, is fo-rmedat the inner end of its reduced portion with a conical portion 6 whichmerges into the surfaces of the body and reduced portion of the spindle.It will also be noted that the extremity of the reduced portion of thespindle is rounded as at 7. Also for a purpose to be presently explainedthe spindle 1 is formed between its head 2 and the conical portion 6with a circumscribing groove S, the formation of which results in ashoulder 9 extending entirely around the spindle 1.

The hub of the pedal is in the form of a sleeve 10 into the outer end ofwhich is fitted the neck 11 of a hub cap 12. The neck 11 is cylindricaland is formed with a bore 18 which is arranged to receive theend of thereduced portion 5 of the spindle, in a 'manf ner illustrated in Fig. 1of the drawing. The hub cap 12 is formed with a circumscribing shoulder-14. Fitted into the other end of the sleeve 10 is the neck 15 of a cap16 which is also formed with a circumscribing shoulder indicated at 17.The cap 16 is hollow and is interiorly cylindrical in form and at itsouter end is increased in diameter as at 1S. By enlarging the head as at1S, a. shoulder 19 is formed. Fitted onto the head 12 is a treadsupporting plate 20, and a similar plate 21 is fitted onto the head 16,these plates being disposed against the shoulders 14 and 17respectively. The treads which are supported by the plate are indicatedby the numeral 22 and they are mounted in place upon bolts 23 extendingbetween the plates. The formation o-f the head 2 results in a shoulder24 which opposes the shoulder 19 when the spindle is fitted within thehub and disposed between these shoulders 19 and 24C is a fiber washer 25which constitutes a wear preventing means as well as a means forpreventing the entrance of dust and grit into the hub.

As before stated, means is provided for detachably holding the hub 10upon its spindle 1, and this means consists in part of a leaf-spring 26which is secured at one end by means of a screw 27 to the sleeve 10 andhas its free end projecting in the direction of the head 16 butterminating shortl thereof. At its free end the spring 2G carries a lug2S which has a plane face 29 presented in the direction of the outer endof the hub and its rounded or beveled face 30 presented in the oppositedirection. This lug is til' normally held by the resiliency ot thespring 2G to project through an opening 31 formed in the wall of thesleeve 10.

In assembling the parts, the hub is slipped onto the spindle l and asthe spindle enters the hub .its conical portion C will ride beneath thebeveled face of the lug 28 and the lug will be lifted and held litted bythe body portion or' the spindle until the spindle has been inserted sofar as to bring` its groove S into registration with the open.- ing 31,whereupon the lug will be snapped into the groove with its plane face 29engaging against the shoulder 9. At such time the rounded end of thespindle portion 5 will be received in the neck ll and the shoulders 19and Q4 will bear against opposite sides of the washer 25.

From the foregoing it will be readily un derstood that the pedal issecurely held against accidental removal from its spindle alter havingbeen applied thereto, by the engagement ot the lug QS in the groove S otthe spindle, but that it may be readily removed it desired by lifting upthe free end of the spring 2G so as to disengage the said lug from thegroove,

It will be apparent 'from the foregoing that not only does the groove 8of the spindle l serve to receive the engaging end ot the lug upon thespindle but that the ormation of this groove serves to weaken thespindle at this point so that should the outer side of the pedal strikethe road surface turning a corner, the spindle will snap at thisweakened portion and bending or breaking of the pedal cranl; will beprevented.

liaving thus described the invention what claimed as new is l. In apedal, a spindle, a hub removably and rotatably litted thereon, andmeans upon the hub yieldably held in cooperative rela tion to thespindle whereby to hold the former in place upon the latter.

2. In a pedal, a spindle, the said spindle being termed with acircumscribing groove, a hub removably and rotatably fitted upon thespindle, and means upon the hub projecting into the groove and arrangedto hold the hub upon the spindle.

B. in a pedal, a spindle, formed with a cirouniscribin shoulder, a hubren'imiably and rotatably iittcd upon the spindlej and means upon thehub yieldably held in engagement with the shoulder whereby to hold thehub in place upon the spindle.

ln a pedal, a spindle formed with a cireumscribing groove and with atapered portion.r and a device carried by the hub and yieldably held inposition to ride upon the tapered portion of the spindle and engage inthe groove therein when the hub is fitted onto the spindle7 theengagement of the device in the groove serving to hold the hub upon thespindle.

5. ln a pedal, a spindle, the said spindle being provided with acircamscribing groove. a hub removably and rotatably iitted upon thespindle and having an opening in its wall, and a spring-pressed lug:ai'ried by the hub and yieldably held to project through the opening inthe hub and into the groove inf the spindle.

In a pedal7 a spindle having a circumseribing shoulder, a hub rotatablyand removably litted upon the spindle and 'formed with an openingarranged to register' with the shoulder upon the spindle when the hub isin place upon the spindle, a leaf-spring secured to the hub, and a lugcarried by the leatspring and yieldably held thereby to project throughthe opening in the hub and into engagen'ient against the said shoulder.

7. In a pedal, a spindle formed with a eircumscribing groove, the saidspindle having a tapered portion, a hub removably and rotatably fittedupon the spindle and 'formed with an opening arranged to register withthe groove when the hub in place upon the spindle7 a leali-springsecured upon the hub7 and a lug, carried by the tree end ot theleaf-spring and normally held to project through the opening in the huband into the groove in the spindle and having a plane tace arranged toabut against one wall ot the groove, and a bevel face arranged to rideover the tapered portion ot the spindle when the spindle is insertedinto the hub.

S. ,ln a pedal, a spindle, having a shoulder located adjacent its innerend, a hub remov ably and rotatably vfitted upon the spindle and havinga shoulder arranged to oppose the shoulder upon the spindle, and awaf-iher litted upon the spindle and confined between the saidshoulders.

9. In a pedal, a spindle having a shoulder located adjacent its innerend7 a hub cour prising a sleeve, a hollow cap Iitted in one end ot' thesleeve and having a shoulder opposing the shoulder upon the spindle. awasher disposed. between the said shoulders, and a cap tted in the otherend oil the sleeve, and having a bore receiving the outer end ot thespindle.

ln testimony whereof I aiiix my signature in presence ot two witnesses.

ROBERT TODD LOWD.

X'Vitnesses Jiissn J. Lnsn, TN. D. Panne.

*Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents. Washington, ZD. C.

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